Twaddle consumed is spin (6)
I believe the answer is:
rotate
'is spin' is the definition.
(I've seen this before)
'twaddle consumed' is the wordplay.
'twaddle' becomes 'rot' (I've seen this in another clue).
'consumed' becomes 'ate' (to eat is to consume food).
'rot'+'ate'='ROTATE'
(Other definitions for rotate that I've seen before include "roll" , "wheel" , "Go round and round" , "Spin as on axle" , "Go around" .)